Github user hequn8128 commented on the issue:
https://github.com/apache/flink/pull/5613
Hi @twalthr
Current implementation will reach the limits if a field becomes too large.
This can be reproduced by creating a filed produced by concat_ws(). see
https://github.com/hequn8128/flink/commit/871fb2c7723c11dd0b75176a3be3be70e2740b2b
Best, Hequn---
